Under-steps vault

The under-steps vault area provided
valuable additional storage space for
the basement flat. The existing tanking system was found to be breaking down through age and condensation was increasingly becoming a problem.

System chosen

Due to the difficulties associated with
providing the required drainage for a cavity-drain membrane system, a
cement based waterproofing system was chosen. Vandex BB75 was applied to the walls, Vandex BB75e to the floor-wall juncture and Vandex Uni-mortar 1 to the floor slab.

To help control the condensation problem within the vault, an insulation based plastering system was used comprising of thermal boards and studded walls packed with Rockwool insulation.

A plaster finish and new skirting boards completed the installation.